---
title: CPMessageComposeBarButton
framework: carplay
role: symbol
role_heading: Class
path: carplay/cpmessagecomposebarbutton
---

# CPMessageComposeBarButton

A button that activates Siri and initiates the compose message flow.

## Declaration

```swift
class CPMessageComposeBarButton
```

## Overview

Overview note: This button type does not use a handler. Instead, tapping this button activates Siri and initiates the compose message flow.

## Topics

### Creating a Message Compose Bar Button

- [init()](carplay/cpmessagecomposebarbutton/init().md)
- [init(image:)](carplay/cpmessagecomposebarbutton/init(image:).md)

## Relationships

### Inherits From

- [CPBarButton](carplay/cpbarbutton.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)

## See Also

### Providing Navigation Bar Buttons

- [backButton](carplay/cpbarbuttonproviding/backbutton.md)
- [leadingNavigationBarButtons](carplay/cpbarbuttonproviding/leadingnavigationbarbuttons.md)
- [trailingNavigationBarButtons](carplay/cpbarbuttonproviding/trailingnavigationbarbuttons.md)
- [CPBarButton](carplay/cpbarbutton.md)